212 lines
4.4 KiB
C
212 lines
4.4 KiB
C
/* PDCurses */
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#include <curspriv.h>
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/*man-start**************************************************************
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deleteln
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--------
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### Synopsis
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int deleteln(void);
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int wdeleteln(WINDOW *win);
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int insdelln(int n);
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int winsdelln(WINDOW *win, int n);
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int insertln(void);
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int winsertln(WINDOW *win);
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int mvdeleteln(int y, int x);
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int mvwdeleteln(WINDOW *win, int y, int x);
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int mvinsertln(int y, int x);
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int mvwinsertln(WINDOW *win, int y, int x);
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### Description
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With the deleteln() and wdeleteln() functions, the line under the
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cursor in the window is deleted. All lines below the current line are
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moved up one line. The bottom line of the window is cleared. The
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cursor position does not change.
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With the insertln() and winsertn() functions, a blank line is
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inserted above the current line and the bottom line is lost.
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mvdeleteln(), mvwdeleteln(), mvinsertln() and mvwinsertln() allow
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moving the cursor and inserting/deleting in one call.
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### Return Value
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All functions return OK on success and ERR on error.
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### Portability
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X/Open ncurses NetBSD
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deleteln Y Y Y
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wdeleteln Y Y Y
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mvdeleteln - - -
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mvwdeleteln - - -
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insdelln Y Y Y
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winsdelln Y Y Y
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insertln Y Y Y
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winsertln Y Y Y
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mvinsertln - - -
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mvwinsertln - - -
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**man-end****************************************************************/
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int wdeleteln(WINDOW *win)
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{
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chtype blank, *temp, *ptr;
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int y;
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PDC_LOG(("wdeleteln() - called\n"));
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if (!win)
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return ERR;
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/* wrs (4/10/93) account for window background */
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blank = win->_bkgd;
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temp = win->_y[win->_cury];
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for (y = win->_cury; y < win->_bmarg; y++)
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{
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win->_y[y] = win->_y[y + 1];
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win->_firstch[y] = 0;
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win->_lastch[y] = win->_maxx - 1;
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}
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for (ptr = temp; (ptr - temp < win->_maxx); ptr++)
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*ptr = blank; /* make a blank line */
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if (win->_cury <= win->_bmarg)
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{
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win->_firstch[win->_bmarg] = 0;
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win->_lastch[win->_bmarg] = win->_maxx - 1;
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win->_y[win->_bmarg] = temp;
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}
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return OK;
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}
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int deleteln(void)
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{
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PDC_LOG(("deleteln() - called\n"));
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return wdeleteln(stdscr);
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}
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int mvdeleteln(int y, int x)
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{
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PDC_LOG(("mvdeleteln() - called\n"));
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if (move(y, x) == ERR)
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return ERR;
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return wdeleteln(stdscr);
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}
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int mvwdeleteln(WINDOW *win, int y, int x)
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{
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PDC_LOG(("mvwdeleteln() - called\n"));
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if (wmove(win, y, x) == ERR)
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return ERR;
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return wdeleteln(win);
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}
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int winsdelln(WINDOW *win, int n)
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{
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int i;
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PDC_LOG(("winsdelln() - called\n"));
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if (!win)
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return ERR;
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if (n > 0)
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{
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for (i = 0; i < n; i++)
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if (winsertln(win) == ERR)
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return ERR;
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}
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else if (n < 0)
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{
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n = -n;
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for (i = 0; i < n; i++)
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if (wdeleteln(win) == ERR)
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return ERR;
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}
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return OK;
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}
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int insdelln(int n)
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{
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PDC_LOG(("insdelln() - called\n"));
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return winsdelln(stdscr, n);
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}
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int winsertln(WINDOW *win)
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{
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chtype blank, *temp, *end;
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int y;
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PDC_LOG(("winsertln() - called\n"));
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if (!win)
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return ERR;
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/* wrs (4/10/93) account for window background */
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blank = win->_bkgd;
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temp = win->_y[win->_maxy - 1];
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for (y = win->_maxy - 1; y > win->_cury; y--)
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{
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win->_y[y] = win->_y[y - 1];
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win->_firstch[y] = 0;
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win->_lastch[y] = win->_maxx - 1;
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}
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win->_y[win->_cury] = temp;
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for (end = &temp[win->_maxx - 1]; temp <= end; temp++)
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*temp = blank;
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win->_firstch[win->_cury] = 0;
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win->_lastch[win->_cury] = win->_maxx - 1;
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return OK;
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}
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int insertln(void)
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{
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PDC_LOG(("insertln() - called\n"));
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return winsertln(stdscr);
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}
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int mvinsertln(int y, int x)
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{
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PDC_LOG(("mvinsertln() - called\n"));
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if (move(y, x) == ERR)
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return ERR;
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return winsertln(stdscr);
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}
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int mvwinsertln(WINDOW *win, int y, int x)
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{
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PDC_LOG(("mvwinsertln() - called\n"));
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if (wmove(win, y, x) == ERR)
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return ERR;
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return winsertln(win);
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}
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